baber/WOPTO huggingface dataset:
Patent DE-2121388-A1 (DE)
Title: Cleaning pad - of foam with enclosed soap or detergent
IPC: A47L13/17
Filed: 1971-04-30
Abstract: A cleaning pad comprises an open-cell foamed plastic or rubber body, wrapped round with nylon felt, and with an intermediate film of polyurethane or a member of the urethane group, this intermediate film is discontinuous or mpermeable, and the body of the foam contains soap or detergent, so that when the pad is soaked in water, this soap or detergent is washed out through the permeable film to the exterior of the pad. Specif. the soap or detergent may be either in block form in a recess in the foam or may be impregnated into the foam. The nylon layer may contain scouring material.
Patent DE-2149246-A1 (DE)
Title: 2-phenoxyethanol xanthates and thiocarbamates - with virustatic activity
Inventor: GRAFE ALFRED DR
IPC: C07D295/08
Filed: 1971-10-02
Abstract: Cpds. of formula (I): (where R is 1-4C alkylthio, pref. MeS, morpholino, piperidino, 2-phenylhydrazino or a gp. of formula: and ring A is opt. mono-, di- or tri-substd. by Cl or Me), and their acid addn. salts, are virustatics active against both DNA and RNA viruses. They may be prepd., e.g., by reacting an opt. substd. 2-phenoxyethanol with CS2 and KOH and alkylating the prodt., opt. followed by reaction with morpholine, piperidine, phenylhydrazine or piperazine.
Patent DE-2246440-A1 (DE)
Title: Nitriding steel - using ammonia gas contacted catalysts such as oxides or decomposable salts before treatment
Inventor: DEUTZMANN GEB GLEISSNER KATHAR
IPC: C23C8/26
Filed: 1972-09-21
Abstract: The NH3 gas is supplied to nitriding chamber after reaching 200 degrees C and after passing over catalysts in an Fe-free, partic. brass, tube or tubes, placed in front of nitriding chamber gas inlet. CAtalysts may consist of oxides and decomposable cpds., e.g. salts, of various gps. of periodic system, opt. in soln., and may be supported, e.g. on glass wool, sillimanite or corundum. The effectiveness of the nitriding atmos. is improved.
Patent DE-2302581-A1 (DE)
Title: Liquid-liquid extraction process - for sepg yttrium values from the lanthanides
Inventor: GAUDERNACK BJOERN DIPL ING
IPC: C01F17/17
Filed: 1973-01-19
Abstract: The light lanthanide elements are sepd. by extraction from an aq. nitrate soln with an org soln of a quat ammonium nitrate, and the heavy lanthamides, subsequently removed from the aq. soln by extraction with an org. soln. of a quat. ammonium thiocyanate. Yttrium cpds. esp. Y oxide is useful in phosphors for colour television tubes and lighting prodts, in electronics and related equipment.
Patent DE-2317113-A1 (DE)
Title: Lightweight paper - adding polymers or polycondensates to paper stock and foaming in situ
Inventor: TELLIER SERGE LE
IPC: D21H21/36
Filed: 1973-04-05
Abstract: Lightweight paper which can be transported at reduced cost is produced from paper-stock to which is added, at any stage, a polymer or a polycondensate, the added constituents being foamed in situ.
Patent DE-2330933-A1 (DE)
Title: Artificial sledge track with low friction surface - for racing or training in non-snow conditions
Inventor: STUEHMER ROLF HERBERT
IPC: B62B17/00
Filed: 1973-06-18
Abstract: Artificial downhill track and sledge system based on a fabricated track covered with panels having surfaces of polyethylene (PE), a fluorinated polyolefin, polymethyleneoxide (PMO), polyester or melamine resin or a cold rolled stainless steel. The sledge should have runners faced with fluorinated polymer or PMO dissimilar from the track surface. Sledge runners are pref. of PTFE filled with powdered metal and/or carbon black for riding a track faced with high MW, low pressure PE filled with carbon black or faced with a weather resistant grade of PMO; on runners are of filled PTFE or PE riding a track of cold rolled austenitic Ni-Cr steel or stainless steel. Sledge may incorporate outlying inclined rubber wheels to stabilise cornering. Equipment provides an all weather alternative to skiing or bob sledging without requiring snow or freezing equipment, and demanding control of a sliding rather than rolling motion.
Patent DE-2334690-A1 (DE)
Title: Magnetic tape player esp for video recordings - has fixed position heads arranged between two pressure rollers
Inventor: THUY HANS-JOACHIM DR RER NAT
IPC: G11B15/60
Filed: 1973-07-05
Abstract: In the tape player, which is intended espec. for recording and playing back video tapes, the tap passes from a supply spool to a driving pulley on either side of which is a pressure roller. In the area between the two pressure rollers the tape is lifted off the pulley and passes around a sickel-shaped guide. The whole width of the tape is carried by the guide on whose surface the tape glides. The heads for video sound and erase may be arranged within the guide or on the other side of the tape so as to engage against it, but in either case good contact with the tape is assured. The height of the tape is controlled by another guide on the approach side of the pulley.
Patent DE-2342000-A1 (DE)
Title: Roller supports girdle changer for large conveyor bands - is designed to reduce replacement time and avoids manual manipulation
Inventor: WIEGER ERHARD
IPC: B65G39/14
Filed: 1973-08-20
Abstract: The damaged roller girdle is made into a continuous chain with replacement roller girdle and the two are rotated in a plane at right angles to the conveyor until the replacement roller girdle has taken the place of the damaged one. A frame is provided, in the plane of rotation, to support the roller girdles during rotation. On this frame a series of rollers are provided to support and guide the roller girdles and also to drive them during the change over. Two couplings serve to join the roller girdles together. The whole may be supported by a mobile crane which can also supply power for the change over.
Patent DE-2343744-A1 (DE)
Title: Pneumatic suspension for rear double axle - with trailing axle vented and lifted off ground if static loading below set value
Inventor: SPAETH HELMUT
IPC: B60G17/052
Filed: 1973-08-30
Abstract: The pneumatic suspension of the driven axle is linked to a control valve via a non-return valve. The control valve is normally shut to prevent air from the reservoir passing to the pneumatic suspension of the trailing axle, of the twin axle arrangement. If the loading on the driven axle exceeds a set value then the valve opens and the trailing axle swings down onto the road. A comparator valve monitors the relative pressures of the two axles to eliminate transient pressure changes and to prevent the trailing axle swinging upwards out of contact with the ground every time a large bump is traversed. The system enables a lightly loaded vehicle to reduce its tyre friction. A manual override control is fitted.
Patent DE-2344706-A1 (DE)
Title: Holder for wound lengths of packaging foils - has axially displaceable stops to tension the foil
Inventor: SCHMIEDER KONRAD
IPC: B65H16/06
Filed: 1973-09-05
Abstract: The foil is for use in packaging machines, and is held on a driven, or rotatably positioned shaft, between two stops. At least one of the stops is formed as a wedge section which may be moved radially outwards by an axial displacement. The wedge sections tension the length of the material, or the sleeve, from the inside. A splined shaft with wedge surfaces is connected rigidly to the shaft. The splined shaft has recesses extending in the axial direction of the shaft, which accommodates the wedge sections. Preferably the stops are each provided with dove-tail shape pieces which engage in the axial recesses in the splined shaft.
Patent DE-2350066-A1 (DE)
Title: Building materials contg alpha-calcium sulphate hemi-hydrate - subjected to partial hydration followed by dehydration with heating
Inventor: BRUKNER BRUNO VECHELDE DIPL CH
IPC: C04B11/02
Filed: 1973-10-05
Abstract: Building materials capable of setting are prepd. by (i) exposing alpha-CaSO4.1/2 H2O, (I), at 20-90 (35-50) degrees C, to partial hydration with water in >=1 step. so that the (I) is converted, only to a pre-determined extent, to gypsum of higher hydration steps; and (ii) re-converting the hydrated intimate mechanical cpd. of Ca sulphates to Ca sulphate of a lower hydration step, by heating. The compsn. is used for plastering, gypsum moulds for slip casting ceramics, and building components, esp. in moist conditions.
Patent DE-2354713-A1 (DE)
Title: Sizing paper with copolymer salts - prepd. from terminal double bond-contg. monomer, acrylic acid, alkyl acrylate, in presence of urea
Inventor: SCHARF EMIL DIPL-CHEM DR
IPC: C08F246/00
Filed: 1973-11-02
Abstract: Water-soluble salt of random copolymers are prepd. by (i) soln. copolymerisation, in the presence of free radical-forming initiators, or a monomer mixt. contg. by wt., (a) 30-80 (50-70)% 2-12(2-8)C unsatd. organic cpds. contg. terminal double bonds, (b) 15-40% acrylic and/or methacrylic acid, (c) 1-15(2-10)% 6-10C-alkyl acrylate, in the presence of 1-10 wt. % urea and (ii) neutralising copolymers obtd. by standard methods. The copolymers are pref. used for sizing paper. Polymers have a narrower mol. wt. distribution and form softer films without reducing ink penetration of sized paper. Sized papers do not dust on printing, resist alkalies and are compatible with fillers. Monomers (c) are eps. acrylates of branched alcohols. Copolymers concn. for paper sizing is 0.05-5(0.1-2) wt. % (solids) w.r.t. paper wt.
Patent DE-2356895-A1 (DE)
Title: Silicone resin treatment of acrylic fibres - in swollen, gel state with aq. emulsions contg. polyoxyethylene alkyl phenyl phosphate emulsifier, giving wash-resistant wool-like feel
Inventor: NOMURA KATSUAKI
IPC: D06M101/16
Filed: 1973-11-14
Abstract: Acrylic fibres made by wet spinning are treated with a weakly acid aq. emulsion contg. (A) a silicone resin of formula (in which R is R1NHR2, R'NHR" or R'NR"2, R' is-(CH2)n-R" is CmH2m+1, n and m are 1-3, and x and y are whole numbers giving a mol. wt. below 100,000) and (B) a polyoxyethylene alkyl phenyl phosphate as emulsifier. The fibres are immediately dried to fix (A) on the surface, and a spinning oil is subsequently applied. The resin is pref. applied while the fibres are in a gel state contg. 40-100% water based on dry fibre wt. in amt. of 0.1-3% (B) pref. contains 5-15 ethylene oxide gps. and 8-12C alkyl gps. Prods. from the fibres have a slippery feel resembling wool which is resistant to washing treatment.
Patent DE-2357575-A1 (DE)
Title: Magnetic system for relay with yoke and U-shaped rocking armature - pivots at base with gaps at sides and limbs actuating contact springs in either position
Inventor: MINKS WERNER
IPC: H01H50/24
Filed: 1973-11-19
Abstract: The magnetic system for a relay has a yoke along the field coil and a U shaped rocking armature as in 2253456. The armature pivots about a point on the base. Whatever the position of the armature one of its limbs will always be in contact with the contact springs along the side of the coil. There is a gap between the yoke and coil on each side. The armature pivot about a point on the surface of the base facing the yoke. There is a slight play in the direction at right angles to the yoke. In the neutral position the armature will lie on the base of the housing.
Patent DE-2358045-A1 (DE)
Title: Enhancement of grained surface of wooden boards - obviates need for sandblasting and reduces dust and health hazard
IPC: B44C1/22
Filed: 1973-11-21
Abstract: The wooden board to be processed is placed on the conveyor belt. It is held down by the rollers so that it passes under the rotating circular brushes. Each of these brushes rotates in the opposite direction to its neighbour. The bristles are of a hard material such as steel and remove the surface layer of the wood, but removing a greater amount from the soft areas between the grain fibres and less from the harder grain fibres themselves, thus accentuating the grain pattern. The final rotating brush removes the wood dust from the board.
Patent DE-2416226-A1 (DE)
Title: Fuel-feed system for combustion chamber - of an impulse effect machine for plastic working of metal
Inventor: KONONENKO WADIM G
IPC: F02B71/06
Filed: 1974-04-03
Abstract: The fuel-feed system of the combustion chamber of an impulse-effect machine for plastic metal working includes a high pressure air line which communicates with the air side of the combustion chamber shut-off device and an admission valve on the chamber shell. The line also communicates with a compression release valve communicating the inside of the chamber with the atmosphere. A pressure release valve is provided on the chamber shell and communicates with two meters. One meter measures combustible gas pressure and the other meter measures combustible mixture pressure inside the chamber. The machine can be of the type used for cutting hot metal of continuous steel-casting plants, rolling mills, briquetting plant or 3-dimensional pressworking. The combustion chamber is cooled by air-scavenging the chamber with an air blast. This results in stabilization of working parameters and improved service life of the chamber.
Patent DE-2416780-A1 (DE)
Title: Sprue with large mixing chamber for multicomponent plastics - has annular inlet slots for components and positive expulsion of mixt
Inventor: HERBST RICHARD
IPC: B29B7/76
Filed: 1974-04-05
Abstract: A sprue unit for the injection, into a mould, of a plastics mixt. of liq. components, esp. cell-forming plastics, comprises a mixing chamber of annular cross-section with annular slot-shaped feed nozzles for the individual components leading into this annular chamber from its outer and inner annular surfaces. After the mixt. has reacted and filled the mould space, the remaining mixt. within the chamber is expelled into the mould. Pref., the chamber is a cylindrical space bounded by stationary outer and inner walls, and having an annular piston sliding axially in it; the piston, as it moves forward and expels the residual material into the mould, also obturates the annular nozzles for the components. The annular chamber may be a frustoconical space having its narrow end towards the mould, the outer face in this case being formed of a stationary component of the sprue unit and the inner face by an axially sliding piston which, in the closed posn., obturates the outlets of the component feed nozzles and, in the open posn., beings them into alignment opposite one another. The wide end of the frustoconical mixing chamber may be towards the mould. Large quantities of materials can be mixed intensively at high speedf the mixing chamber is completely emptied after the mould has been filled by the positive displacement action of the piston, so that no residual plug of material remains.
Patent DE-2422808-A1 (DE)
Title: Generator power control in cathodic sputtering - optoelectronic coupler and servomotor drive variable capacitor to adjust grid-current
Inventor: BRUCH JUERGEN DIPL ING
IPC: H01J37/34
Filed: 1974-05-10
Abstract: Process for the power-control of a high-frequency(H. F.) generator for a cathodic sputting appts. comprising a vacuum chamber sputtering cathode, and substrate holder where the H. F. generator contains a grid-controlled transmitting tube in an oscillating circuit and a variable capacitor is located in front of the input to the sputtering appts. The grid-current of the transmitting tube is monitored and compared with a reference value, the deviation being fed to a servo unit which adjusts the variable capacitor so the grid-current is kept. at a constant value between 0.3-1.0 x Ig max. esp. 0.6-0.9 x Ig max. The power can be adjusted over a wide range without the ned for manual tuning of the generator.
Patent DE-2425674-A1 (DE)
Title: Single frequency elimination filter - consists of bridged T section with series resonant circuit in shunt arm
Inventor: GOERICKE HARALD
IPC: H03H7/07
Filed: 1974-05-28
Abstract: The series circuit may be tuned to the frequency to be eliminated, and the filter comprises further an inductance in each series arm bridged by a circuit adjusted for maximum attenuation of the frequency to be eliminated. The bridging circuit is a series resonant circuit whose resonant frequency is outside the frequency to be eliminated and on the side of the useful frequency band to be transmitted; the shunt arm contains a series circuit consisting of a capacitor in series with a parallel LC circuit. A sharp trough in the frequency transmission curve may be produced, and the shape of the trough may be a symmetrically, with the slope of the higher frequency flank (22a), being steeper than that of the lower frequency flank (22b).
Patent DE-2431186-A1 (DE)
Title: Thrust washer fitting tool - steel strip shank with bent back tongs at ends and washer support
Inventor: FISCHER MAX
IPC: B25B27/08
Filed: 1974-06-28
Abstract: The tool is for fitting snap-type thrust washers in place in grooves in shafts etc., and has a shank of steel strip with tongs at the ends, bent back at an acute angle. The distance between them is greater than the diameter of the shaft to which the washer is to be fitted, and on the shaft behind the tongs is a support for the washer, with a transverse trough portion for the latter, this trough being joined by a support face. The trough can have an inner wall running parallel tothe shank, merging into a wall via a curve, tangential to the washer. The supporting face can curve towards the handle, and the support can be of steel strip, adjustable in the lengthwise direction to suit different washers.
Patent DE-2443097-A1 (DE)
Title: Compression device for edge glueing press - has single hydraulic cylinder and knee joint system to apply both stress and compressive forces
Inventor: REITMEIER ERNST
IPC: B27D5/00
Filed: 1974-09-09
Abstract: The knee-lever tensioning and compression device for edge gluing presses has a compression cylinder which operates in its longitudinal direction. The compression cylinder operates through a lever system and first tensions the workpiece before applying the compressive pressure to it. The suspension of the unit may be by ball bearings moving along a profile arm or by rollers of solid or elastic material. The complete double function of the machine is provided by only one hydraulic cylinder on which no side stresses operate and thus its working life is improved.
Patent DE-2446494-A1 (DE)
Title: Trimetallic, acidic, dual-function catalyst
Inventor: HAYES JOHN CHANDLER
IPC: C10G35/09
Filed: 1974-09-28
Abstract: The catalyst comprises 0.01-2 wt.% Pt or Pd (pref. 0.05-1 wt.% Pt) and 0.01-2 (&ref. 0.05-1) wt.% Ir, 0.01-5 (pref. 0.05-2) wt.% Ge and 0.1-3.5 (pref. 0.5-1) wt.% halogen, esp. Cl, the metals being uniformly dispersed throughout a porous refractory inorg. oxide, and esp. alumina, carrier, the Ge being present as an oxide. The process is carried out at 800-1100 (pref. 900-1050) degrees F, up to 100 psig (pref. 50-350 psig), an LHSV of 0.1-10 (pref. 1-5) and an H2/hydrocarbon molar ratio of 1-20 : 1 (pref. 5-10). The catalyst has improved characteristics, including relative insensitivity to hydrocarbon deposn., a lower C5 + yield loss for a given temp.increase and increased hydrogen prodn
Patent DE-2452581-A1 (DE)
Title: Optical scanning arrangements for character recognition - using lenses and moving mirrors produces scanned image in mask plane with minimum complications
Inventor: TROPF HERMANN
IPC: G06V10/88
Filed: 1974-11-06
Abstract: Character recognition devices scan the character concerned by means of lenses and moving mirrors and produce a corresponding image in a mask plane with minimum complication. A small accurately positioned scanned image is required. The first arrangement uses two convex lenses two plane mirrors, one capable of being rotated through a small scanning angle and two concave mirrors which produce an image in the required plane for processing normally correlation with some stored information. A slightly different alternative form of this uses only one concave mirror. Another arrangement entails using a multilayer deflection plate producing a brighter though less accurate image. Another method reverses the usual procedure and scans the various masks across the single object image, using a reflected image to monitor the match or mismatch.
Patent DE-2454776-A1 (DE)
Title: Feeding materials into molten metal, esp. steel - using immersion lances mounted on a swivel head and used alternately
Inventor: SIEWERT KURT
IPC: C21C5/46
Filed: 1974-11-15
Abstract: Plant for the feeding treatment agents into molten metals, esp. for the desulphurisation of molten steel in a ladle, the novelty being the use of several independent immersion lances which can be moved vertically in a conventional manner and which are located round a vertical pillar, the upper section of the latter being able to rotate whereas its lower section is stationary, the lances gliding along the stationary section of the pillar. An endless conveyor magazine is pref. used for the storage of lances and a swivel-loader employed to replace a lance while the latter is in the raised position. One lance can be replaced and/or repairs undertaken while another lance is being used in the ladle of molten steel, so there is no loss of production time.
Patent DE-2460834-A1 (DE)
Title: Non-flammable organo mineral foams - prepd by reaction of aq water glass solns with diisocyanates or polyisocyanates
Inventor: HILTERHAUS KARL-HEINZ DIPL CHE
IPC: C08G18/28
Filed: 1974-12-21
Abstract: Non-flammable organo-mineral foams consists of reaction products of (A) water glass, and (B) a cpd. contg. at least 2 NCO gps. The foams are low in cost and posses the desired physical properties, esp. compressible strength at various densities. PRef. (A) is a Na and/or K water glass, pref. derived from a Na silicate of 48-60 degrees Be, and (B) is an undistilled isocyanate crude product, as obtd. by phosgenation of crude aniline-formaldehyde resins, or a mixt. of higher functional polyisocyanates with more than 2 benzene rings per molecule.
Patent DE-2502344-A1 (DE)
Title: Flat screen for reproducing TV pictures - has fluorescent layer with integrated circuitry between transparent plates
Inventor: HABERKERN OTTMAR
IPC: H05B33/12
Filed: 1975-01-21
Abstract: The flat screen for reproducing television pictures uses a suitable fluorescent phosphor material as its active medium. The fluorescent phosphor material is sandwiched by air-tightly sealed plastics or glass plates and is manufactured in sizes compatible with existing television equipment. A fluorescent phosphor layer (3) is deposited onto an aluminium foil (2) and the whole sandwiched between two transparent plastics or glass outer layers (1). The fluorescent phosphor material contains the integrated circuitry necessary for its excitation. The screen may be also used as monitor for video cassette recorders.
Patent DE-2504391-A1 (DE)
Title: Removing nitric oxide from off-gases - by washing with magnesium-calcium chloride solution and with alkali solution
Inventor: FURUTA ISAO
IPC: B01D53/56
Filed: 1975-02-03
Abstract: Removal of NO from offgases e.g. from steel plants and combustion furnaces, is effected by washing the gases with a first aqs. soln. contg. a chloride of Mg or Ca, and a hypochlorite, and then with a second aqs. soln. contg. an alkali. Does not use expensive or dangerous denitrifying agents. Provides efficient denitrification without environmental pollution, as polluting by-prods. are not formed. Suitable for use on an industrial scale.